LMZ10503EXTTZ datasheet(8/12 Pages) NSC

Part #	LMZ10503EXTTZ

Description	LMZ1050xEXT Evaluation Board

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Manufacturer	NSC [National Semiconductor (TI)]

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Circuit Example: Complies with EN55022 Class B Radiated Emissions

30128025

FIGURE 19. Component Schematic, V

IN = 5V, VOUT = 2.5V, Complies with EN55022 Class B Radiated Emissions

TABLE 3. Bill of Materials

Designator

Description

Case Size

Manufacturer

Manufacturer P/N

Quantity

U1

SIMPLE SWITCHER®

TO-PMOD-7

National

Semiconductor

LMZ10503/4/5EXTTZ

1

C

in1

1 µF, X7R, 16V

0805

TDK

C2012X7R1C105K

1

C

in2

4.7 µF, X5R, 6.3V

0805

TDK

C2012X5R0J475K

1

C

in3

47 µF, X5R, 6.3V

1210

TDK

C3225X5R0J476M

1

C

O1

100 µF, X5R, 6.3V

1812

TDK

C4532X5R0J107M

1

R

fbt

75 k

Ω

0805

Vishay Dale

CRCW080575K0FKEA

1

R

fbb

34.8 k

Ω

0805

Vishay Dale

CRCW080534K8FKEA

1

R

comp

1.1 k

Ω

0805

Vishay Dale

CRCW08051K10FKEA

1

C

comp

180 pF, ±5%, C0G, 50V

0603

TDK

C1608C0G1H181J

1

C

SS

10 nF, ±5%, C0G, 50V

0805

TDK

C2012C0G1H103J

1

30128038

FIGURE 20. Radiated Emissions (EN55022, Class B)

V

IN = 5V, VOUT = 2.5V, IOUT = 3A

Tested on LMZ10503EXT Evaluation Board

30128026

FIGURE 21. Radiated Emissions (EN55022, Class B)

V

IN = 5V, VOUT = 2.5V, IOUT = 4A

Tested on LMZ10504EXT Evaluation Board

www.national.com

8

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